What Charm does

Charm (legally Charmbracelet, Inc.) is a New York-based developer tools company founded in 2019 that builds a portfolio of open-source Go libraries and command-line applications for modern terminal user interfaces. The core framework, Bubble Tea, uses an Elm-like functional architecture for building TUI applications and anchors a composable ecosystem that includes Lip Gloss (styling and layout), Bubbles (reusable components), Huh (forms), Glamour (markdown rendering), Glow (markdown reader), Log (structured logging), Harmonica (physics-based animation), Wish (SSH apps), Gum (shell scripting), Skate (key-value store), Soft Serve (self-hosted Git), VHS (terminal recording), and VHS. Its technology is deployed in over 25,000 applications and is adopted by AWS, Shopify, Nvidia, and GitHub.

Charm distributes its libraries primarily through GitHub as open-source software under a product-led and community-led go-to-market motion, supplemented by an active Discord server and developer blog. The commercial model centers on enterprise licensing and support engaged via direct outreach; pricing is not publicly disclosed and no SaaS tiers are listed, which makes enterprise revenue mechanics opaque despite marquee adoption. Charm is venture-backed, having raised a $3.5 million round in April 2021 led by NAP and a $6 million seed round in November 2023 led by Google's Gradient Ventures, with participation from Firestreak Ventures, Fuel Capital, and NAP across both rounds.

The company has 11–50 employees and is led by co-founder and CEO Christian Rocha. Its strategic emphasis on AI-augmented terminal workflows, exemplified by Crush (an AI shell integrating user-selected LLMs) and Mods (a CLI interface to ML models), aligns with the thesis of its AI-focused lead investor and represents the most recent direction in product expansion. Cross-platform availability across macOS, Linux, Windows, and BSD positions the company to serve developers across the major computing environments.

Name

Charm

Legal name

Charmbracelet, Inc.

Website

https://charm.sh

Company type

Private

Founded year

2019

Operating status

Operating

Headcount range

1–10 employees

Short description

Charm (Charmbracelet, Inc.) develops open-source Go-based CLI libraries and terminal applications, anchored by the Bubble Tea TUI framework and AI tools Crush and Mods, serving individual developers and enterprises including AWS, Shopify, Nvidia, and GitHub.

Ownership category

akta.pro rank

Product category

Developer Tools

NAICS

Software Publishers (5132)

SIC

Services-Computer Programming Services (7371)

akta.pro primary industry

Mobile App Development Platforms (MADP) (HDAEAKAD)

Keywords

• Command line tools
• Terminal user interfaces
• Open source libraries
• Developer tooling frameworks
• Go TUI frameworks

Headquarters

HQ city

New York

HQ country

United States

HQ region

North America

Markets served

GTM type

B2B and B2C

Offering type

Software

Cost components

Personnel, Technology or R&D, Operations, Marketing or Sales, Infrastructure

Revenue model

1. Enterprise Licensing and Support: Charm offers commercial solutions for enterprises through direct outreach (mailto:[email protected]). Enterprise customers like AWS, Shopify, Nvidia, and GitHub adopt Charm's open-source libraries, with the company likely offering paid support, customization, or licensing for business-critical deployments.

Go-to-market motion3 records

Distribution channels2 records

Marketing channels4 records

Core offering

Charm develops and distributes an open-source ecosystem of Go-based terminal user interface (TUI) frameworks and command-line tools. Its core library, Bubble Tea, enables developers to build rich interactive terminal applications, supported by complementary libraries for styling (Lip Gloss), components (Bubbles), forms (Huh), markdown rendering (Glamour), SSH apps (Wish), and animation (Harmonica), alongside standalone applications like Glow, Gum, Skate, Mods, Crush, Soft Serve, and VHS.

Product overview

Charm is a portfolio of open-source terminal tools and libraries designed to modernize the command line experience. The offering is a modular ecosystem of complementary Go libraries rather than a single unified product. The core TUI framework is Bubble Tea, which pairs with Lip Gloss (styling), Bubbles (components), and Huh (forms) to enable rich terminal interfaces. Glamour and Glow handle markdown rendering. Log provides logging, Harmonica enables animations, and Wish enables SSH apps. The AI layer consists of Crush (AI shell with LLM integration) and Mods (CLI interface to AI models). Gum and Skate provide script and key-value utilities. The libraries are designed to be composable, with Charm technology powering over 25,000 applications including deployments at major enterprises.

Differentiator

Problem solved

Functional benefit

Products and services

• Bubble Tea A Go framework for building terminal user interfaces with a functional Elm-like architecture, providing the foundation for rich TUI applications. Targeted at Go developers building interactive CLI tools.
• Lip Gloss A terminal style and layout toolkit for Go providing styling and layout primitives for building visually appealing CLI applications. Pairs with Bubble Tea for cohesive terminal UI development.
• Glow An award-winning markdown reader for the command line with a customizable TUI and CLI interface, allowing developers and technical writers to read markdown content directly in the terminal.
• Glamour A stylesheet-driven markdown renderer for terminal output that enables styled rendering of markdown content in CLI environments.
• Bubbles A component toolkit for Bubble Tea providing reusable UI components like text inputs, paginators, viewports, and spinners for building terminal user interfaces.
• Huh A simple, powerful forms library for building interactive terminal input interfaces, supporting various field types and validation. Targeted at developers building interactive CLI prompts.
• Log A happy, powerful little logger for Go applications providing structured logging capabilities with a developer-friendly interface.
• Harmonica A physics-based animation toolkit for creating smooth, natural-feeling animations in terminal user interfaces.
• Wish A Go library for building SSH applications, enabling developers to create interactive terminal applications accessible via SSH connections.
• Mods An AI-powered CLI tool providing a terminal interface to machine learning models for text generation, analysis, and AI-powered workflows. Targeted at developers seeking LLM access from the terminal.
• Gum A tool for glamorous shell scripts that provides interactive command-line utilities, leveraging Bubble Tea and Lip Gloss without requiring Go code. Targeted at shell scripters and DevOps engineers.
• Skate A personal key-value store with a simple, powerful command line interface for managing key-value data through shell pipes. Targeted at developers needing lightweight CLI-based storage.
• Crush An AI-powered command line shell that integrates tools, code, and workflows with user-chosen LLMs. Available for macOS, Linux, Windows, and BSD. Targeted at developers wanting AI-augmented terminal workflows.
• Soft Serve A self-hostable Git server with a command line and TUI interface, enabling developers to run their own Git hosting platform.
• VHS A terminal recorder and GIF generator for creating demo videos of CLI applications. Targeted at developer relations and technical content creators.
• Enterprise Licensing and Support Commercial licensing, support, and customization for enterprises embedding Charm's open-source libraries into business-critical infrastructure. Accessed via direct email outreach ([email protected]).

Quantifiable outcome

• Charm technology is deployed in over 25,000 applications

Named customers4 records

Segments3 records

Ideal customer profiles2 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

AI capability3 records

Feature13 records

Scale indicators3 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Ratatui: Rust TUI framework that is the closest cross-language analog to Bubble Tea, targeting developers building rich terminal interfaces in the Rust ecosystem.
• Textual: Python TUI framework from Textualize that competes for the same developer mindshare as Charm's Bubble Tea, enabling modern interactive terminal apps in Python.
• Hyper: Open-source terminal emulator (Electron-based) targeting developer productivity and customization; competes in the modern command-line tooling category Charm addresses.
• Fig (acquired by AWS, now Amazon Q for command line): Was a direct competitor in the modern CLI/autocomplete category before AWS acquisition; overlaps directly with Charm's mission of making the command line more accessible and now competes via Amazon Q's developer CLI.
• Warp: Modern terminal application competing for the same developer mindshare — building a glamorous, AI-augmented command-line experience as a direct alternative to Charm's TUI/CLI tooling.
• Ink: React/Node-based TUI framework providing the same developer value proposition as Bubble Tea — building interactive terminal UIs — but for JavaScript rather than Go developers.

Emerging players

• Raycast: Developer productivity platform with a command palette/CLI-style interface and growing AI integration; overlaps with Charm's developer-tools mission from a launcher UX perspective.

Broad incumbents

• Postman: Established developer tools incumbent with a CLI product (Newman) and large enterprise customer base; shares Charm's horizontal developer-tooling GTM but operates at much broader scale.
• GitHub Copilot CLI: GitHub's AI-powered CLI assistant directly overlaps with Charm's Crush and Mods products; backed by Microsoft/GitHub distribution advantage and existing Charm customer relationship.
• Sourcegraph: Developer tools platform with AI coding assistants and CLI interfaces (e.g., Cody CLI); competes in the same AI-powered developer productivity category as Charm's Crush product.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks5 records

Key highlights6 records

Customer concentration

• GitHubgithub.com/charmbracelet
• Xx.com/charmcli

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Funding overview

Funding rounds4 records

Investors7 records

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Charm